Bearing for shafts.



M. U. BERNHEIM.

BEARING FOR SHAFTS.

APPLICATION FILED MAY 2, 1910,

1,147,136. Patented July 20, 1915.

- .1 A A a 0 A h A l V \J \.J \J

1 MORRIS U-,Bnnnnn 1vr, or LOUISVILLE, KENTUCKY, Assmnon, BY ivrnsnnASSIGN- IVIENTS, 'ro THE nLvnv-rnnensoiv COMPANY, or OAKLEY,ornorn'ivnrr; onto, A

CORPORATION OF OHIO.

BEARING non snAnrs.

Patented July 24), 1915.

- Application filed May 2, 1910. Serial No. 558,784.

To all whom, it may concern: a v Be it known that I, Monnrs U. BERNHEIM,

a citizen of the United States, residing at.

Louisville, in the county of Jefferson and State of Kentucky, haveinvented new and useful Improvements in Bearings for Shafts, of whichthe following is a specifica tion.

vide a bearing of most simple and durable construction which willsatisfactorily an swer conditions peculiar to certain special classes ofmachinery, suchfor example, as gravity conveyers of the type; whereofthe beds'are formed, in Whole or in part, of rollers. It frequently isfound "necessary in this class of machinery to: dispose the conveyer ata grade of'fromone-half inch to one inch per foot, for exampla atwwhichgrade provision must be made for'a' certain amount of frictionalresistance to the rotation of the; rollers in the bed of the con: veyer,greater thanthat which would occur if the rollers were mounted uponrotative bearing elements. Moreover, in this type of machinery, twolongitudinally: extending frame elements carry between them a series ofrollers, which are spaced, ordinarily, about six inches apart fromcenter to center, and extend transversely of the conveyer from one frameelement to the other and are supported by the latter. In view of thegreat number of bearings which, therefore, must be provided even in a,conveyer of very ordinary length, the cost of eachbearing is an itemcalling for important consideration. must be given tothe operativenessof-the rollers, for reliance is, placed upon them automatically to' feedpackages by their rotative movements against thepack'a'ges, under theinfluence of gravityinthe particular type of conveyers hereinbeforereferred Again, special 4 consideration proper operation of the machineis interfered with. This makes it desirable to provide a bearing whichamong others of its capabilities can be readily replaced when it isworn'or improperly fitted to its shaft. These are among the importantspecial considerations which I have answered by my present invention,-myobject being to provide a bearing for shaftsand analogous'objects, whichwillbe simple and inexpensive in its construction, and can be readilyand easily applied to its support and removed therefrom, for purpose ofrenewal or for any-other purpose: and to this end the invention consistsin certain peculiarities in the construction and arrangement of partsand in certain novel combinations of'elements substantially ashereinafter described and particularly pointed out in the subjoinedclaims. 7

In' the accompanying drawings illustrating the invention Figure ;1- is aside elevation of a support provided with a line of the presentbearings, in condition for shipment. 'Fig. 2 is an end view of a gravityconveyer embodying my improvements. Fig. 3 is a sectional view of thebearing, showing the contiguous end of a roller sup ported thereby.

Similar characters of reference designate correspondingfparts in theseveral views. The bearing is composed of a hollow member A and a memberB. The member comprlses a head 1 and'a stem 2, and the opening for thereception of the shaft C which it is to sustain preferably extendsthroughout its entire length, as clearly shown in Fig. 3. Its stem 2 'isexternally threaded, asjseen at 3, to engage and hold the member 'B. Thecorrelation of the parts issuch that the stem 2 will be adapted toextend through a suitable aperture in the support D, while the head 1will engage one surface of said support and the member B will engagetheopposlte surface ofthe support. This member B forms a clamping nut bywhich the friction, the diameter of the opening 4 through the bearing isgreater at one or more places in its length thanthat of the shaft C, thelatter in the illustrated embodiment finding its bearing against thewall of the opening through the head 1, which opening is ofsubstantially the same diameter as said shaft, while the stem 2 iscounterbored so that its internal wall will be free from contact withthe shaft C throughout its length. A hearing thus constructed answersall the conditions before noted. Being more especially intended for usein conveyers havporting and bracing means therefor, not

necessary particularly to illustrate or describe herein. These sidemembers are each provided at intervals with apertures through which thestems of the bearings severally extend and said bearings are clampedagainst the side surfaces of the respective side members in the manneralready set forth. The shafts C illustrated project from the ends offreely rotatable rollers E which form the bed of the conveyer. When thisbed extends at a downward inclination, packages placed thereon areautomatically moved from one end to the other, with perfect safetythereto, under the influence of gravity. In some of these machines, theframe and bed is disposed on a level and in others they are arranged atan upward in clination, in which event power is employed to propel thepackages over the bed, and I am aware that the present bearing may beuseful in such machines, and in fact, in other classes of machinery thanconveyers, where conditions may be presented which can be satisfactorilyanswered by a bearing of the present character.

Mention may be made of the fact that for gravity conveyers which are tobe operated on grades of from one-half inch to one inch per foot thelength of that portion of'the opening whose wall is in contact with theshaft 0 is approximately three-eighths of an inch. This gives sufficientsupporting surface to the axle of the roller and the re-- mainder of thebearing is counterbored so that the shaft will not come in contact withthe metal of the bearing and create undue friction. It will be notedthat this bearing accomplishes the purposes stated andalso overcomes thedisadvantages incident to merely providing an aperture in the frame forthe axle, among which disadvantagesv may be mentioned the fact that themetal of the. frame is not always of the same hardness and v some of theapertures wear more than others, requiring in"such ease replace ment ofthe entire side member. Preferably the shafts C are .reniovably driveninto the ends of the rollers'Eto facilitate assemblage anddisassemblage' of the parts. Having now described my invention what Ibelieve to be new and desire to secure by Letters Patent, is: v i f 1. Abearing for the shaft of a conveyerroller, the said bearing beingformed'of two members the first ofw'hich is provided with a stemarranged to extend through'an'aperture in a support and a head to engagea side of the support, and the second of which members is mounted on.said'stem, and arranged to engage the other side of the support, saidfirst member being an integral structure and having a longitudinal shaftopening in its stem and head, and which opening for substantially halfofits length is of substantially the diameter ofthe shaft, 7 i

so as to engage the latter and form a bearng therefor, and for th'eremainder of its length is of greater diameter than the shaft so as tobe out of contact'therewith.

2. A'bearing for theshaft of. a conveyer roller, the said bearing havingtwo members, one of said members belng provlded with a part arranged toextend through an aperture in a support, the said part having alongitudinal opening whose inner wall is integral throughout, saidopening being of greater diameter than the shaft for'a substantialportion of its length and being of substantially the same diameter asthe shaft for the'remainder of its'length, the said partalso having atone end an outwardly extending portion to engage the adjacent side ofthe support, the other of said membersbeing mounted on the other end ofthe first member and arranged to engage the adjacent side of thesupport.

3. A roller disposed in an approximately horizontal plane and havingshafts atopposite ends, supports having apertures and bearings for saidshafts, arranged in said substantially the diameter of the shaft and. Intestimony whereof I have hereunto set engaging the latter, and theportion of my hand in presence of tWo subscribing 10 a greaterdiamelalteril being devoid. 1offelenrlilents Witnesses:

or sur aces W 10 engage sal s a t, W ere 5 by the portion of the shaftWithin the greater MORRIS BERNHEIM' diameter of the opening is free fromcontact Witnesses: With an element affording frictional resist- B. H.ALVEY, ance to the rotation thereof. GEO. D. HEYWARD.

Copies of this patent they be obtained for five cents each, byaddressing the Commissioner of Patents.

Washington, D. 0.

